CN106164569A - Luminaire and light fixture - Google Patents

Abstract

Provide a kind of luminaire (100), the second tubular body (130) including the first tubular body (120), being positioned at the first tubular body (120) and the supporting construction being positioned at the first tubular body (120).Supporting construction supports multiple solid-state illumination (SSL) element (160) on a support surface, and described SSL element is configured under the angular range including the first scope launch light.Supporting construction is fixed in the first tubular body (120) by the first tubular body (120) and the second tubular body (130).Supporting construction includes that the tubulose extended from stayed surface receives parts (156), and described tubulose receives parts and engages with described second tubular body (130).

Description

Lighting Equipment and Luminaires

technical field

The present invention relates to lighting devices and, in particular, to lighting devices comprising solid state lighting (SSL) elements.

The invention also relates to a method of assembling a lighting device and a luminaire comprising the lighting device.

Background technique

As the population continues to grow, it becomes increasingly difficult to meet the world's energy needs and at the same time control carbon emissions to curb greenhouse gas emissions that are believed to be responsible for the phenomenon of global warming. These concerns trigger a drive towards more efficient use of electricity in an attempt to reduce energy consumption.

One such area of interest is lighting applications, whether in domestic or commercial environments. There is a clear trend to replace traditional relatively energy inefficient light bulbs (such as incandescent or fluorescent light bulbs) with more energy efficient alternatives. Indeed, the production and retailing of incandescent light bulbs is illegal in many jurisdictions, thereby forcing consumers to purchase energy efficient alternatives (eg, when replacing incandescent light bulbs).

Solid state lighting (SSL) devices offer a more promising alternative that can produce a unit light output at a fraction of the energy cost of an incandescent or fluorescent light bulb. An example of such an SSL element is a light emitting diode (LED).

It is known to provide SSL lighting with a shape similar to the general shape of a fluorescent tube (ie, tubular solid state lighting). These tubular SSL devices can be used to replace fluorescent light tubes or for similar applications to fluorescent light tubes.

An example of a prior art tubular SSL element based lighting device comprises a tubular body within which is a printed circuit board on which a plurality of LED elements are mounted at regular intervals.

In one known construction, the printed circuit board is bonded to the tubular body using double-sided adhesive tape. However, securing the components in place using tape can be difficult. In particular, due to the adhesive nature of this adhesive tape, it can be difficult to position within the tube, especially if the tube has a certain length. For example, if the tape is secured to the tubular body first, the tape can become prematurely stuck in an undesired location, or if the tape is secured to the printed circuit board first, the printed circuit board may become stuck in an undesired position. becomes stuck in position. Furthermore, the use of tape can be difficult to automate.

Contents of the invention

The present invention seeks to provide a lighting device which can be assembled in a straightforward manner.

The present invention provides a lighting device, comprising: a first tubular body; a second tubular body located in the first tubular body; and a support structure located in the first tubular body, which supports a plurality of SSL elements on a support surface, the The SSL element is configured to emit light at a range of angles including the first range, wherein the support structure is secured within the first tubular body by the first tubular body and the second tubular body.

Since the support structure is held (ie held) in place within the first tubular body by the first and second tubular bodies, the device can be assembled without the need for complex or difficult to assemble parts, including adhesive tape. Furthermore, the lighting device can be assembled using relatively simple procedures. Due to these factors, lighting devices can be set up in a relatively cost-effective manner.

In some application areas, certain angles at which light is emitted by an SSL element can be shielded from direct view by an external observer, for example to prevent or reduce glare. In other words, since the SSL element emits light under an angular range that includes the first range, the first angular range may be excluded from direct observation. To this end, in some embodiments, the lighting device may comprise a first tubular body provided with a diffusive and/or reflective area facing the light-emitting surface of the SSL element, said diffuse and/or The reflective area is dimensioned to diffuse and/or reflect light emitted by said SSL element at emission angles within said first range.

At least from certain viewing angles, the diffuse area can obscure the SSL elements such that the SSL elements are not perceived as independent point sources of light emission, but instead the lighting device takes on a uniform appearance in use.

The reflective area may obscure the SSL element, at least from certain viewing angles, since light from the SSL element within said first range cannot directly leave the lighting device. Diffuse and/or reflective areas may be provided by films or coatings.

If the diffusive and/or reflective area is provided by a film, the film can be inserted into the first tubular body using the second tubular body and then held in place. For example, the membrane can be held in place by its tendency to stretch, which is a particularly simple way of holding (or securing) the membrane in place.

At least one of the first tubular body and the second tubular body may be glass. It is especially economical to use glass tubular bodies. Furthermore, due to the relative rigidity of the glass body, some length of the lighting device can be provided without the need for additional structural elements.

The support structure may include a carrier selected from at least one of a printed circuit board and a heat sink, wherein the SSL component is mounted on the carrier.

The support structure may comprise a container including said support surface, said container further comprising a light exit window opposite the support surface and separated from the support surface by a plurality of side surfaces, said window exit window being dimensioned to allow Light emitted by the SSL element directly exits the container under said first range of emission angles; and the support structure includes a diffusive and/or reflective structure extending from the support surface to the light exit window for preventing emission outside said first range The light emitted by the SSL element exits the container directly at the angle.

The light exit window may be a transparent or translucent side of the container. Thus, the container may surround the SSL element such that if the first tubular body breaks, the SSL element and other electrical components of the lighting device are not exposed.

Alternatively, the light exit window may be an opening.

SSL elements can be mounted directly on the support surface. Alternatively, the SSL element may be mounted on a carrier supported by a support surface.

The side surfaces may comprise said diffusive and/or reflective structures.

The diffusive and/or reflective structure may comprise at least one inclined portion for redirecting light emitted by the plurality of SSL elements at angles outside said first range to the light exit window.

This can increase the amount of light exiting through the light exit window, thus increasing the luminous efficacy of the device.

The lighting device may comprise at least two of said sloped parts, each of the two sloped parts being provided by a separate component.

The support structure may include at least one tubular receiver extending from the support surface, the at least one tubular receiver engaging the second tubular body.

The second tubular body may be transparent or translucent.

The lighting device may further include at least one cover, the cover including: a first engagement feature for engaging the first tubular body; a second engagement feature for engaging the second tubular body; and a third engagement feature for engaging the support structure.

Such a cover may hold the first tubular body, the second tubular body and the support structure in place. In this way, alignment of the components of the lighting device can be achieved in a simpler manner. Additionally, the cover may provide an electrical connection between the SSL element and a power source, optionally via a driver optionally included in the cover.

The present invention also provides a lamp, including the above-mentioned lighting device. As mentioned above, since the lighting device can be provided in a relatively cost-effective manner, a luminaire comprising the lighting device can also be provided in a relatively cost-effective manner.

The present invention also provides a method of assembling the lighting device, comprising: inserting the second tubular body into the first tubular body; inserting a support structure into the first tubular body; and using the first tubular body and the second tubular body The body secures the support structure within the first tubular body.

Since the method is relatively simple and does not require steps involving complicated or awkward parts such as adhesive tape, the method can be more easily performed and/or more easily automated. Thus, the method can be used to assemble lighting devices in a cost-effective manner.

When the first tubular body is provided with a diffusive and/or reflective region provided by the film facing the SSL element, the method may further comprise: inserting the film into the first tubular body with the second tubular body, and placing the film adhered to the first tubular body.

Inserting the film into the first tubular body by inserting the second tubular body into the first tubular body reduces the number of steps required to assemble a lighting device comprising a diffusive and/or reflective film facing the SSL element. Thus, the method can be used to assemble such lighting devices in a cost-effective manner.

Description of drawings

Embodiments of the invention are described in more detail and by way of non-limiting example with reference to the accompanying drawings, in which:

Fig. 1 shows a schematic cross-section of a lighting device according to an embodiment of the present invention;

Figure 2 shows an enlarged part of the schematic section of Figure 1;

Fig. 3 shows a schematic perspective view of the partially assembled lighting device of Fig. 1 in partial section;

Figure 4 shows an additional schematic perspective view of the partially assembled lighting device of Figure 1 ;

Fig. 5 shows a schematic perspective view of the lighting device of Fig. 1 in partial section;

Fig. 6 shows a schematic cross-section of a lighting device according to another embodiment of the present invention;

Fig. 7 shows a schematic cross-section of a part of a lighting device according to yet another embodiment of the present invention;

Fig. 8 shows a further schematic cross-section of a part of the lighting device of Fig. 7;

Fig. 9 shows a schematic cross-section of a luminaire according to an exemplary embodiment of the present invention.

detailed description

It should be understood that the drawings are merely schematic and not drawn to scale. It should also be understood that the same reference numerals are used throughout the drawings to indicate the same or similar parts.

Referring first to FIG. 1 of the drawings, a lighting device, generally indicated at 100 , includes a first tubular body 120 and a second tubular body 130 located within the first tubular body 120 . The lighting device 100 also includes a support structure within the first tubular body 120 . The support structure supports a plurality of solid state lighting (SSL) elements 160 on a support surface. SSL element 160 is configured to emit light over a range of angles including the first range.

In some applications, certain angles at which light is emitted by the SSL 160 may have to be shielded from direct view by an external observer, eg, to prevent or reduce glare. In other words, since the SSL element 160 emits light at an angular range that includes the first range, the first angular range may necessarily be excluded from direct viewing. To this end, in some embodiments, lighting device 100 may include diffusive and/or reflective structures, as described below.

The supporting structure is fixed inside the first tubular body 120 by the first tubular body 120 and the second tubular body 130 . The support structure may be or include any structure capable of supporting multiple SSL elements as known to those skilled in the art. By way of non-limiting example, the support structure may include a carrier selected from at least one of printed circuit board 154 , heat sink 152 , and container 146 .

In the context of this specification, the support structure is mounted (or fixed) within the first tubular body 120 by means of the first tubular body 120 and the second tubular body 130 . Collaboration remains in place. In other words, the support structure is fixed between the first tubular body 120 and the second tubular body 130, or the support structure is held in place by cooperation between the first tubular body 120 and the second tubular body 130 and the support structure .

Since the support structure is fixed within the first tubular body 120 by the first tubular body 120 and the second tubular body 130, the solid state lighting element 160 can be fixed within the first tubular body 120 without the need for complicated parts or parts that are difficult to assemble .

As described below, lighting device 100 may be assembled using a relatively simple process. In turn, this allows embodiments of lighting device 100 to be assembled on an automated line.

Furthermore, the structure can provide optical efficiency and light distribution equivalent to prior art plastic tube solid state lighting devices.

The tubular bodies 120 , 130 may have any suitable size so long as the second tubular body 130 is insertable into the first tubular body 120 .

At least one of the first tubular body 120 and the second tubular body 130 may be glass.

The use of glass tubular bodies 120 , 130 can be particularly economical. In particular, glass tubular bodies can be obtained at a lower cost than plastic tubular bodies. In some cases, the cost of the glass tubing can be as low as one-tenth the price of a comparable plastic tubing.

Furthermore, a specific combination of using glass tubular bodies and securing the support structure within first tubular body 120 through first tubular body 120 and second tubular body 130 can be used to achieve certain advantages: when glass tubular bodies are used, the previously claimed Complicated lighting device structures are unnecessary (eg complex parts or parts that are difficult to assemble, such as adhesive tape). Thus, this combination can be used in a particularly cost-effective manner due to the relative cheapness of glass and the simple assembly process that is often inexpensive.

Another advantage is that glass has a better ability to dissipate heat than many plastic materials. Thus, the glass tubular body may form at least part of a heat sink for regulating the temperature of the SSL element 160 in use. Thus, the use of a glass tubular body may mean that a separate heat sink need not be provided. Alternatively, where a separate heat sink is provided, the heat sink can be smaller, since glass tubes can take a better part in dissipating heat than many plastic tubes. The omission of a separate heat sink may result in simpler and more economical assembly of the lighting device, and the use of a smaller heat sink may also be more economical.

The bottom surface of the support structure (eg, the bottom surface of the container 146 or the heat sink) may be a curved surface, which may provide good contact between the support structure and the inner surface of the first tubular body 120 . In turn, this good contact between the support structure and the first tubular body 120 can provide good thermal conductivity between the support structure and the first tubular body 120, thereby providing good heat dissipation.

Furthermore, the use of plastic tubing beyond a certain length may require the use of additional structural elements to prevent the plastic tubing from buckling or sagging. However, since glass materials are less flexible than plastic materials, no additional structural elements to prevent sagging are required for lighting devices longer than the above-mentioned specific length. Furthermore, securing the support structure via the first tubular body 120 and the second tubular body 130 need not require basic structural elements. For example, in some embodiments, fixing structures such as adhesive tapes may be omitted entirely, or the amount of such fixing structures may be significantly reduced, for example, tape portions may only be used at the ends of the first tubular body 120 to further secure the support. structure. Therefore, the combination of fixing the support structure by the first tubular body 120 and the second tubular body 130 and using the glass tubular body can be used to achieve certain advantages: the structure and material combination are particularly simple and do not require additional structural elements, even for longer than Lighting equipment of the specified length above. Thus, such a combination can be particularly economical or cost-effective.

SSL components such as LEDs are used as point light sources, which can result in a speckled glowing appearance to SSL component based lighting devices. This mottled glowing appearance may be undesirable. In particular, this differs significantly from the appearance of fluorescent tubes (which typically produce a substantially uniform or uniform light output), and this difference in appearance may discourage the use of SSL lighting fixtures. Additionally, directly visible SSL elements can cause glare (difficulty viewing in the presence of bright light). Lighting with glare problems caused by large illuminance (light intensity per unit area) is not preferred for certain tasks, such as office, home lighting, workshop lighting, etc.

The first tubular body 120 may be provided with a diffuse and/or reflective region 122 facing the light-emitting surface of the SSL element 160, the diffuse and/or reflective region 122 being dimensioned to emit light within said first range. Light emitted by the SSL element 160 is diffused and/or reflected at angles.

The diffuse and/or reflective region 122 obscures the SSL element in normal use within said first range. For example, if region 122 is diffuse, light generated by SSL element 160 may be diffused at emission angles within the first range such that SSL element 160 is not perceived as an independent point source of light emission, but rather The lighting device 100 provides a more uniform appearance in use. Glare problems can be significantly reduced if the appearance is more uniform.

Alternatively, if region 122 is reflective, light emitted at the first range is reflected rather than exiting lighting device 100, which may also help reduce glare, at least from certain viewing angles.

If region 122 is reflective and diffuse (sometimes referred to as diffusely reflective), light generated by SSL element 160 at emission angles within the first range may be reflected and diffuse such that SSL element 160 is not Perceived as an independent point source of light emission, and further, light from the SSL element 160 is provided over a wider area. This can improve the appearance of the lighting device and further reduce glare as described above.

The first range may be chosen to maximize the effect of providing light over a wide area. In a non-limiting exemplary embodiment, the first range may be 180° or less. In other non-limiting exemplary embodiments, the first range may be from 30° to 150°, from 50° to 130°, from 70° to 110°, from 80° to 100°, or approximately 90° . Of course, the first range may be any other suitable range selected by those skilled in the art.

Diffuse and/or reflective regions 122 may be provided by membrane 124 . If the first tubular body 120 is glass, the use of such a film 124 may be a good way to provide the diffusive and/or reflective region 122 since it is not easily provided by bending, etching or co-extrusion. 122 is especially convenient way. For example, membrane 124 may be inserted into first tubular body 120 using second tubular body 130 as described below.

Such a membrane 124 can be held in place relative to the first tubular body 120 by its natural tendency to straighten. This is a particularly simple way of holding (or fixing) the membrane 124 in place.

In the embodiment shown in FIGS. 1-5 , the membrane 124 is within the first tubular body 120 . However, the membrane may be on the outer surface of the tubular body 120 . Apparently, the membrane on the outer surface of the first tubular body 120 does not need to be inserted into the first tubular body 120, and thus can be easily assembled. However, such a membrane would need to be attached to the first tubular body 120, for example with an adhesive. However, such films can be more easily damaged and are further considered less aesthetic since there is no smooth surface at the edges of the film.

An advantage of using the film 124 may be that the film 124 may provide a uniform thickness along the length of the lighting device 100 even though the lighting device 100 has some length. However, providing a coating of uniform thickness over some length, particularly on the inner surface of the tubular body, can present challenges. This is because access to the inner surface of the tubular body, especially at the center of the tubular body, for application of the coating, is hindered by the ends of the tubular body.

Alternatively, diffusive and/or reflective regions 122 may be provided by a coating. The coating may be applied to the inner or outer surface of the first tubular body 120 . For example, a coating may be applied to the outer surface of the first tubular body 120 . Alternatively, the coating may be applied to the inner surface of the first tubular body 120 using known liquid coating processes. In the liquid coating process, a liquid including diffusing particles such as phosphors is prepared, then flowed through a tubular body and dried under a flow of hot air. The liquid on the inner surface of the tubular body is thereby dried, forming a coating that adheres to the inner surface. The support structure may include a carrier on which the SSL element 160 is mounted.

The carrier may comprise a printed circuit board 154 , in which case the SSL component 160 may be mounted on the printed circuit board 154 , and the support surface of the support structure may be provided by the printed circuit board 154 .

A printed circuit board is a convenient way to provide power to the solid state lighting element 160 . The printed circuit board 154 may be of materials commonly used in the art and fabricated according to such processes known to those skilled in the art.

The carrier may include a heat sink 152, which may help regulate the temperature of the SSL element 160 in use, potentially increasing the lifetime and/or reliability of the SSL element. Accordingly, the heat sink 152 is particularly advantageous where the lighting fixture provides high light output, as is known in the art.

The heat spreader may be any suitable thermally conductive material known in the art, for example a metal such as aluminum.

Each SSL element 160 may be mounted on an independent support structure, or at least some of the SSL elements 160 may share a support structure. For example, SSL element 160 may be mounted on a single support structure.

The support structure may include a container 146 that includes a support surface. The container 146 may include a light exit window 148 opposite the support surface and separated from the support surface by a plurality of side surfaces 150, the light exit window being dimensioned such that the light emitted by the SSL element at the first range of emission angles The emitted light exits the container 146 directly. The support structure may comprise diffusive and/or reflective structures extending from the support surface to the light exit window for preventing light emitted by the SSL element at emission angles outside said first range from directly leaving the container.

The light exit window 148 may be a transparent or translucent side of the container 146, alternatively the window exit window 148 may be an opening.

If light exit window 148 is a transparent or translucent side of container 146 , container 146 may surround SSL element 160 . Thus, if the tubular body 120 breaks (eg, shatters), the SSL element and other electrical components of the lighting device are not exposed. This can help mitigate the risk that consumers will be exposed to SSL element 160 and/or other live parts. In other words, the use of a container 146 without an opening may provide a safer device.

Container 146 may be any suitable material. However, shatter-resistant materials are preferred, as this can help mitigate the aforementioned risk that consumers will be exposed to electrical components.

In a preferred configuration, container 146 is polycarbonate. For example, the side surfaces 150 and base 151 of the container 146 may be white opaque polycarbonate, while the light exit window 148 may be transparent polycarbonate. Container 146 may be made of any other suitable material known to those skilled in the art (eg, PET or PMMA), and may be fabricated according to processes known in the art.

In an alternative configuration, the light exit window 148 may be a translucent material. If the light exit window is sufficiently diffuse, it does not need to provide other diffusers and/or reflectors to provide a sufficiently uniform light output, ie one where the SSL element 160 is not visible alone.

The diffusing region 122 is sized to diffuse light emitted by the SSL element at a first range of emission angles and is sized to only allow light emitted by the SSL element 160 to directly exit the container 146 at the first range of emission angles. The combination of the light exit window 148 means that the SSL element 160 is not directly visible during normal use of the lighting device 100 . This is shown by sight in FIG. 1 . In other words, the light generated by the SSL element 160 may not exit the lighting device 100 directly. Therefore, light generated by SSL element 160 must contact diffusing region 122 , side surface 150 and/or sloped portion 142 in order to exit lighting device 100 . Therefore, if the area 122, the side surface 150, and/or the sloped portion 142 are sufficiently diffuse, the SSL element 160 will not be directly visible, and the SSL element 160 may not be considered an independent point source of light emission, so the lighting device 100 may be in the Provides a uniform appearance and less glare in use. In other words, lighting device 100 may provide a light output with an appearance comparable to conventional lighting devices, such as incandescent or fluorescent light bulbs.

The diffusive and/or reflective structure of the support structure may include at least one inclined portion 142 for redirecting light emitted by the plurality of SSL elements 160 at angles outside said first range to the light exit window 148 .

This can increase the amount of light exiting through the light exit window 148 and thus increase the efficiency of the device.

As shown in FIGS. 1 and 2 , the lighting device 100 may include at least two inclined portions 142 .

Furthermore, each of the two sloped sections can be provided by a separate part 144 . In some embodiments, for example as shown in FIGS. 1 and 2 , the sloped portion 142 may be provided by a substantially triangular discrete component 144 .

Using discrete components 144 can help avoid shrinkage deformation. In particular, providing individual components that are shatterproof and heat resistant can be challenging. The use of a discrete component 144 to provide the sloped portion 142 means that there is no need to provide a component that is both shatterproof and sufficiently heat resistant to be placed adjacent to the SSL element 160 . Additionally, discrete components 144 may be used to place PCB 154 in place such that PCB 154 does not touch light exit window 148 and is secured within the container.

An alternative way of providing the sloped portion 142 includes using a V-shaped reflector. The reflector may be made of any suitable reflective material, such as metal (such as aluminium) or plastic. The reflector may include a reflective coating, eg, the material from which the reflector is made is not inherently reflective but may instead include a reflective coating. The material from which the reflector is made preferably has a certain stiffness such that the reflector retains its shape over time.

The second tubular body 130 may be transparent or translucent. If the second tubular body 130 is transparent, in order for the lighting device 100 to provide a uniform light output, other elements of the lighting device 100 may be responsible for homogenizing the light output of the SSL element 160, such as the area 122 and the container 146 described above. However, if the second tubular body 130 is translucent and if the second tubular body 130 is dimensioned to diffuse and/or reflect light emitted by the SSL element at emission angles within said first range and If the support structure comprises diffusing and/or reflective structures for preventing light emitted by the SSL element from leaving the container directly at emission angles outside said first range, this alone may be sufficient for the lighting device 100 to provide a uniform light output.

The second tubular body 130 may be made translucent in a similar manner as discussed above with reference to the diffusive and/or reflective region 122 . For example, the second tubular body 130 may be plastic and etched or may comprise a translucent plastic material. Alternatively, the second tubular body 130 may be glass and include a diffusing film or coating on the inner or outer surface of the second tubular body 130 . For example, the membrane may be inserted into the second tubular body 130 using techniques similar to the insertion of the membrane 124 into the first tubular body 130, as described below. Of course, alternative means must be used for inserting the membrane into the second tubular body 130 , for example a further tubular body with a smaller diameter than the second tubular body 130 .

As shown in FIGS. 3 , 4 and 5 , the lighting device 100 may further include at least one cover 110 . The cap 110 may include a first engagement feature 112 for engagement with the first tubular body 120, a second engagement feature 114 for engagement with the second tubular body 130, and a third engagement feature 116 for engagement with the support structure.

The cover 110 can hold the first tubular body 120, the second tubular body 130 and the support structure in place. However, other arrangements for holding the first tubular body 120, the second tubular body 130 and the support structure in place may be implemented, such as any fixation elements available for this purpose, such as discrete fixation elements, positioning of the lighting device 100 therein. The components of the lamp and other alternatives that those skilled in the art will think of on the basis of considering the present disclosure.

Cover 110 may hold driver 170 . The driver 170 may include a driving circuit for driving the SSL element 160 . This configuration facilitates the integration of the required driver circuitry into the lighting device 100 . If the lighting device 100 includes an integrated driver circuit, it may be easy to retrofit the lighting device 100 into a conventional luminaire.

Additionally, cover 110 may provide an electrical connection between SSL element 160 and a power source. For example, cover 110 may include connectors, such as pins, that connect to a power source, such as that of an accessory, such as an accessory of a light fixture.

FIG. 6 illustrates other features of an embodiment of the lighting device 100 . These embodiments are substantially similar to the embodiments described above, so only the key differences are described.

In Fig. 6, the diffusive and/or reflective structure of the support structure does not include sloped portions 142 for redirecting light emitted by the plurality of SSL elements 160 at angles outside said first range to the light exit window. Indeed, said side surfaces 150 of the container 146 comprise diffusing and/or reflective structures of support structures.

However, as described above, the diffusive and/or reflective region 122 sized to diffuse and/or reflect light emitted by the SSL element at a first range of emission angles is not The combination of light emitted by the SSL element directly exiting the light exit window 146 of the container in the first range of , means that the SSL element 160 is not directly visible in normal use of the lighting device 100 . This is shown by the line of sight in FIG. 6 .

7 and 8 illustrate further features of embodiments of lighting device 100 . These embodiments are substantially similar to the embodiments described above, so only the key differences are described.

In the lighting device of Figures 7 and 8, the carrier comprises at least one tubular receiver 156 extending from the support surface. At least one tubular receiver 156 is engaged with the second tubular body 130 .

Specifically, in the embodiments described above, the support structure comprises a container, however in the non-limiting exemplary embodiment of FIGS. 7 and 8 , the support structure shown is a carrier, in particular a printed circuit board 154 . However, as mentioned above, a container is preferred in cases where the first tubular body shatters the SSL element 160 and other electrical components may not be exposed to the user, thereby providing the advantage of greater safety.

As shown in FIGS. 7 and 8 , the tubular receiver 156 may include an arcuate surface portion that engages the second tubular body 130 . This ensures that the carrier is installed (fixed) between the first tubular body 120 and the second tubular body 130 . Furthermore, the printed circuit board 154 of the carrier may be fixed between the first tubular body 120 and the second tubular body 130 without the SSL element touching the first tubular body 120 .

In the illustrations of FIGS. 7 and 8 , the construction of the support structure is relatively simple, however, those skilled in the art will understand that the tubular receiver 156 can be used in the embodiments described above. For example, a heat sink may be incorporated into the support structure of the embodiment shown in FIGS. 7 and 8 . Yet another example may be to include a tubular receiver in the embodiments described above with reference to FIGS. 1-5 or 6 .

A luminaire 100 according to any embodiment of the invention may advantageously be included in a luminaire 200, such as a holder for the luminaire 100 (e.g. a ceiling luminaire), an armature for mounting under a cabinet or the like, a device in which the luminaire is integrated (for example, range hood, etc.) and so on. FIG. 9 schematically shows a luminaire 200 comprising a plurality of lighting devices 100 installed in a housing 210 of the luminaire 200 . The luminaire 200 includes a light exit window 220 . The light exit window 220 may include a beam shaper, such as one or more lens arrays, reflectors, or the like. Alternatively, the light exit window 220 may simply be formed through an opening in the housing 210 . The inner surface of the housing 210 may be reflective to reflect light exiting the lighting device 100 .

As shown in FIG. 9 , the solid state lighting element 160 of the lighting device 100 faces the light exit window 220 of the luminaire 200 . This configuration may be particularly appropriate where region 122 is diffuse and non-reflective. Alternatively, the lighting device may be mounted in the luminaire 200 such that the solid state lighting element 160 faces away from the light exit window 220 . This configuration may be particularly suitable if the region 122 is (diffusely) reflective.

Luminaire 200 comprising luminaire 100 is capable of producing an appearance visually similar to that produced by a luminaire comprising conventional fluorescent or phosphorescent tubes.

In a non-limiting example, light fixture 200 may be a ceiling armature, such as an armature integrated into a suspended ceiling. Other examples of such luminaires 200 will be apparent to those skilled in the art.

As shown in Fig. 3, Fig. 4 and Fig. 5, specifically, the lighting device 100 according to the embodiment of the present invention can be assembled by the following methods: inserting the second tubular body 130 into the first tubular body 120; inserting the supporting structure into the first tubular body 120; and securing the support structure within the first tubular body 120 using the first tubular body 120 and the second tubular body 130.

When the first tubular body 120 is provided with a diffusive and/or reflective region 122 provided by the film 124 facing the SSL element 160, the method may further comprise: inserting the film 124 into the first tubular body 120 with the second tubular body 130 , and the membrane 124 is adhered to the first tubular body 120 .

For example, the membrane 124 can be inserted into the first tubular body 120 using the second tubular body 130 by clamping the membrane into the second tubular body 130 using clips. Once the membrane 124 is inserted into the first tubular body 120, the clip is removed. This is a particularly simple way of inserting the membrane 124 into the first tubular body 120, so that an awkward assembly process may not be required and thus can be relatively easily automated. Therefore, this assembly process can be cost effective.

As noted above, the membrane 124 can be held in place relative to the first tubular body 120 by its tendency to stretch. This is a particularly simple way of holding the membrane 124 in place, thus not requiring the use of complicated components or difficult manufacturing processes.

The method may include assembling a support structure, such as the support structure shown in FIG. 1 . For example, the support structure shown in FIG. 1 may be assembled by inserting printed circuit board 134 with solid state lighting element 160 mounted thereon into receptacle 146 and inserting component 144 into receptacle 146 .

When the lighting device 100 includes the cover 110 as described above, the method further includes engaging the first tubular body 120 with the first engagement feature 112 of the cover 110 and engaging the second tubular body 130 with the second engagement feature 114 of the cover 110 , and engaging the support structure with the third engagement feature 116 of the cover 110 . In this way, alignment of the components of the lighting device 100 can be achieved in a simpler manner.

Additionally, as shown in FIG. 4 , the cover 110 may include alignment features 118 for ensuring that the film 124 or coating providing the diffusive and/or reflective regions is sized (or positioned) to be diffusive and/or reflective. Light emitted by the SSL element at emission angles within a first range. Alignment features may be used to ensure that the diffuse and/or reflective region 122 is aligned with the support structure to have an emission angle within the first range.

The method may further include: applying an adhesive to join the surface of the first tubular body 120 with the first engaging feature 112 of the cover 110, join the surface of the second tubular body 130 with the second engaging feature 114 of the cover 110 and/or The surface of the support structure and the third engagement feature 116 of the cover 110 . Alternatively, any other suitable securing method may be used, such as an interference fit, as would be apparent to a person skilled in the art.

Since the steps of the method are relatively simple and do not require steps such as the use of adhesive tape, the method can be automated. As mentioned above, the steps involving tape are often complex and/or cumbersome, and thus difficult to automate and require such steps, particularly in prior art glass tube based lighting fixtures.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design many alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps other than those recited in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by hardware comprising several discrete elements. In a device claim enumerating several means, several of such means may be embodied by one and the same item of hardware. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Claims (14)

1. a luminaire (100), including:

First tubular body (120)；

Second tubular body (130), is positioned at described first tubular body；And

Being positioned at the supporting construction of described first tubular body, it supports multiple SSL element (160), described SSL on a support surface Element is configured under the angular range including the first scope launch light,

Wherein, described supporting construction is fixed on described first tubular body by described first tubular body and described second tubular body In；

Wherein, described supporting construction includes carrier, selects at least one from printed circuit board (PCB) (154) and radiator (152) Selecting described carrier, wherein said SSL element is installed on the carrier；

Wherein, described carrier includes at least one the tubulose receiving element (156) extended from described stayed surface, described at least one Tubulose receiving element engages with described second tubular body.

Luminaire the most according to claim 1, wherein, described first tubular body is disposed an outwardly facing described SSL element The diffusion of light-emitting area and/or reflector space (122), described diffusion and/or reflector space be dimensioned to diffusion and/or Reflect and issued, by described SSL element transmitting angle in the range of described first, the light penetrated.

Luminaire the most according to claim 2, wherein, described diffusion and/or reflector space are by film (124) or coating Arrange.

Luminaire the most according to any one of claim 1 to 3, wherein, described first tubular body and described second pipe At least one in shape body is glass.

Luminaire the most according to any one of claim 1 to 4, wherein, described tubulose receiving element (156) includes and institute State the arcuate surface portions that the second tubular body (130) engages.

Luminaire the most according to any one of claim 1 to 5, wherein:

Described supporting construction includes container (146), and described container includes that described stayed surface, described container also include and described The light exit window (148) that support surface relatively and is separated with described stayed surface by multiple side surfaces (150), described smooth exit window Be dimensioned to allow issued the light penetrated directly off described by described SSL element in the transmitting angle of described first scope Container；And

Described supporting construction includes diffusion and/or the catoptric arrangement extending to described smooth exit window from described stayed surface, is used for Prevent from being issued the light penetrated directly off described container by described SSL element in described first extraneous transmitting angle.

Luminaire the most according to claim 6, wherein, described side surface includes described diffusion and/or catoptric arrangement.

Luminaire the most according to claim 6, wherein, described diffusion and/or catoptric arrangement include that at least one tilts Partly (142), for the light launched under described first extraneous angle by the plurality of SSL element is gone out towards described light Penetrate window to redirect.

Luminaire the most according to claim 8, including sloping portion described at least two, wherein the two sloping portion In each provided by discrete parts (144).

Luminaire the most according to any one of claim 1 to 9, wherein, described second tubular body is transparent or semi-transparent Bright.

11. luminaires according to any one of claim 1 to 10, also include that at least one covers (110), described lid bag Include:

First engagement features (112), engages with described first tubular body；

Second engagement features (114), engages with described second tubular body；And

3rd engagement features (116), engages with described supporting construction.

12. 1 kinds of light fixtures, including the luminaire (100) according to any one of claim 1 to 11.

13. 1 kinds assemble the method according to the luminaire (110) according to any one of claim 1 to 11, including:

Described second tubular body (130) is inserted in described first tubular body (120)；

Described supporting construction is inserted in described first tubular body；And

Described first tubular body and described second tubular body is used described supporting construction to be fixed in described first tubular body.

The method of the 14. described luminaires of assembling according to claim 13, wherein, described first tubular body is provided with face To described SSL element, film (124) diffusion that provides and/or reflector space (122), and described method also includes:

Utilize described second tubular body to be inserted into by described film in described first tubular body and described film is adhered to described One tubular body.